Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2024-09-26 Purchase | 2024-09-27 4:08 pm | GCT Semiconductor Holding Inc. | GCTS | Anapass Inc. 10% Owner | 741,603 | $3.02 | $2,239,641 | 9,103,136 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2024-03-26 Option Award(A) | 2025-04-14 8:27 pm | N/A 2029-04-19 | GCT Semiconductor Holding Inc. | GCTS | Barker Robert Class II Director Director | 19,609 | $0 | 19,609 (Direct) | View |
2024-03-26 Option Award(A) | 2025-04-07 5:16 pm | N/A 2029-04-19 | GCT Semiconductor Holding Inc. | GCTS | Kim Jeemee VP of Engineering & CTO | 310,060 | $0 | 310,060 (Direct) | View |
2025-03-31 Option Award | 2025-04-02 4:09 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Barker Robert Class II Director Director | 16,768 | $0 | 58,865 (Direct) | View |
2025-03-31 Option Award | 2025-04-02 4:08 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Shin Hyunsoo Class II Director Director | 16,768 | $0 | 84,248 (Direct) | View |
2025-03-31 Option Award | 2025-04-02 4:08 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Chun Kukjin Class I Director Director | 16,768 | $0 | 45,791 (Direct) | View |
2025-03-31 Option Award | 2025-04-02 4:07 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Lee Kyeongho Chairman & Class III Director | 16,768 | $0 | 1,003,277 (Direct) | View |
2025-03-31 Option Award | 2025-04-02 4:06 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | TUDER JEFFREY Class III Director Director | 16,768 | $0 | 42,056 (Direct) | View |
2025-03-31 Option Award | 2025-04-02 4:05 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Chan Nelson Class I Director Director | 16,768 | $0 | 42,056 (Direct) | View |
2025-03-26 Other | 2025-03-28 4:00 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Concord Sponsor Group III LLC 10% Owner | 7,049,327 | $0 | 3,733,827 (Direct) | View |
2024-03-26 Option Award(A) | 2025-02-27 4:01 pm | N/A 2025-02-23 | GCT Semiconductor Holding Inc. | GCTS | Schlaefer John President, CEO & Class III Dir | 227,322 | $0 | 148,622 (Direct) | View |
2024-03-26 Option Award(A) | 2025-02-27 4:00 pm | N/A 2025-02-23 | GCT Semiconductor Holding Inc. | GCTS | Sum Alex Sr. VP of Sales and Marketing | 145,441 | $0 | 55,298 (Direct) | View |
2025-01-13 Exercise | 2025-02-21 6:54 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Schlaefer John President, CEO & Class III Dir | 35,669 | $0.11 | 127,173 (Direct) | View |
2025-01-13 Exercise | 2025-02-21 6:54 pm | N/A 2025-02-23 | GCT Semiconductor Holding Inc. | GCTS | Schlaefer John President, CEO & Class III Dir | 35,669 | $0 | 127,173 (Direct) | View |
2025-02-19 Exercise | 2025-02-21 6:02 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Sum Alex Sr. VP of Sales and Marketing | 13,259 | $0.11 | 108,743 (Direct) | View |
2025-02-19 Exercise | 2025-02-21 6:02 pm | N/A 2025-02-23 | GCT Semiconductor Holding Inc. | GCTS | Sum Alex Sr. VP of Sales and Marketing | 13,259 | $0 | 108,743 (Direct) | View |
2024-12-31 Option Award | 2025-01-02 4:07 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | TUDER JEFFREY Class III Director Director | 11,802 | $0 | 25,288 (Direct) | View |
2024-12-31 Option Award | 2025-01-02 4:06 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Shin Hyunsoo Class II Director Director | 11,802 | $0 | 67,693 (Direct) | View |
2024-12-31 Option Award | 2025-01-02 4:05 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Lee Kyeongho Chairman & Class III Director | 11,802 | $0 | 1,697,279 (Direct) | View |
2024-12-31 Option Award | 2025-01-02 4:04 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Chun Kukjin Class I Director Director | 11,802 | $0 | 28,964 (Direct) | View |
2024-12-31 Option Award | 2025-01-02 4:03 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | CHAN NELSON C Class I Director Director | 11,802 | $0 | 25,288 (Direct) | View |
2024-12-31 Option Award | 2025-01-02 4:02 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Barker Robert Class II Director Director | 11,802 | $0 | 41,162 (Direct) | View |
2024-12-13 Option Award | 2024-12-16 4:01 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Shin Hyunsoo Class II Director Director | 1,000 | $2.5 | 55,891 (Direct) | View |
2024-12-16 Option Award | 2024-12-16 4:01 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Shin Hyunsoo Class II Director Director | 37,000 | $2.57 | 55,891 (Direct) | View |
2024-09-30 Option Award | 2024-11-21 4:19 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | TUDER JEFFREY Class III Director Director | 8,208 | $0 | 13,486 (Direct) | View |
2024-09-30 Option Award | 2024-11-21 4:17 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Shin Hyunsoo Class II Director Director | 8,208 | $0 | 17,891 (Direct) | View |
2024-09-30 Option Award | 2024-11-21 4:15 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Lee Kyeongho Chairman & Class III Director | 8,208 | $0 | 1,685,477 (Direct) | View |
2024-09-30 Option Award | 2024-11-21 4:14 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Chun Kukjin Class I Director Director | 8,208 | $0 | 17,162 (Direct) | View |
2024-09-30 Option Award | 2024-11-21 4:13 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | CHAN NELSON C Class I Director Director | 8,208 | $0 | 13,486 (Direct) | View |
2024-09-30 Option Award | 2024-11-21 4:12 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Barker Robert Class II Director Director | 8,208 | $0 | 29,360 (Direct) | View |
2024-08-21 Option Award | 2024-08-23 4:04 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Cheng Edmond Chief Financial Officer | 76,000 | $0 | 76,000 (Direct) | View |
2024-06-30 Option Award | 2024-07-05 09:25 am | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | TUDER JEFFREY Class III Director Director | 5,278 | $0 | 5,278 (Direct) | View |
2024-06-30 Option Award | 2024-07-03 4:20 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Shin Hyunsoo Class II Director Director | 5,278 | $0 | 9,683 (Direct) | View |
2024-06-30 Option Award | 2024-07-03 4:19 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Lee Kyeongho Chairman & Class III Director | 5,278 | $0 | 1,677,269 (Direct) | View |
2024-06-30 Option Award | 2024-07-03 4:18 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Chun Kukjin Class I Director Director | 5,278 | $0 | 8,954 (Direct) | View |
2024-06-30 Option Award | 2024-07-03 4:16 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | CHAN NELSON C Class I Director Director | 5,278 | $0 | 5,278 (Direct) | View |
2024-06-30 Option Award | 2024-07-03 4:15 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Barker Robert Class II Director Director | 5,278 | $0 | 21,152 (Direct) | View |
2024-03-26 Option Award(A) | 2024-05-03 4:28 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Lee Kyeongho Chairman & Class III Director | 961,220 | $0 | 897,530 (Direct) | View |
2024-03-26 Other(A) | 2024-05-03 4:28 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Lee Kyeongho Chairman & Class III Director | 800,000 | $0 | 897,530 (Direct) | View |
2024-03-26 Option Award(A) | 2024-05-03 4:05 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Anapass Inc. 10% Owner | 7,275,863 | $0 | 8,213,213 (Direct) | View |
2024-03-26 Other(A) | 2024-05-03 4:05 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Anapass Inc. 10% Owner | 937,350 | $0 | 8,213,213 (Direct) | View |
2024-03-26 Option Award | 2024-03-28 9:11 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Concord Sponsor Group III LLC 10% Owner | 8,260,606 | $0 | 25,948,843 (Direct) | View |
2024-03-26 Conversion | 2024-03-28 9:11 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Concord Sponsor Group III LLC 10% Owner | 1 | $0 | 25,948,843 (Direct) | View |
2024-03-26 Other | 2024-03-28 9:11 pm | N/A N/A | GCT Semiconductor Holding Inc. | GCTS | Concord Sponsor Group III LLC 10% Owner | 7,278,121 | $0 | 25,948,843 (Direct) | View |
2024-03-26 Option Award | 2024-03-27 7:01 pm | N/A N/A | Concord Acquisition Corp III | GCTS | Anapass Inc. 10% Owner | 7,275,863 | $0 | 7,275,863 (Direct) | View |
2024-03-26 Option Award | 2024-03-27 7:01 pm | N/A 2029-01-01 | Concord Acquisition Corp III | GCTS | Barker Robert Class II Director Director | 19,608 | $0 | 6,535 (Direct) | View |